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🇪🇺

Soil Structure Interaction for Integral Bridge

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AI Summary
  • This session presents the modeling and analysis of Soil–Structure Interaction for Integral Bridges using MIDAS GTS NX, focusing on the unique challenges of jointless bridge design where the superstructure is rigidly connected to the substructure.
  • Practical guidance is provided on capturing cyclic thermal and traffic-induced soil pressures, and how these interactions influence foundation and abutment design in real engineering projects.

Description

In this session, Rohith Swaminathan from MIDAS IT Europe explores the unique complexities of Soil–Structure Interaction as applied to Integral Bridge design. Unlike conventional bridges with expansion joints, integral bridges feature a rigid connection between the deck and the abutments, making the soil response a critical driver of structural behavior.

 

The session covers the fundamental principles of integral bridge systems and demonstrates how MIDAS GTS NX can be used to accurately model the soil-abutment-deck interaction under a range of load conditions, including cyclic thermal movements and live traffic loads.

 

Participants will learn how to properly set up boundary conditions, apply earth pressure models, and interpret displacement and stress results in the context of abutment and pile foundation design. The session draws on practical project experience to highlight common modeling pitfalls and how to resolve them efficiently.

Key Points

Fundamentals of Integral Bridge systems and why SSI plays a critical role in design compared to conventional jointed bridges

Step-by-step setup of SSI models in MIDAS GTS NX including boundary conditions, soil constitutive models, and interaction elements

Modeling cyclic thermal expansion and traffic-induced loading effects on abutment soil pressure and pile behavior

Practical tips for interpreting results and avoiding common modeling errors in integral bridge SSI analysis

Benefit

Certificate

Issued upon session completion

Lecture Materials

PDF & Practice Files

Speaker

Rohith Swaminathan Technical Support Engineer MIDAS IT
Rohith is the Senior Geotechnical Engineer at Midas IT Europe. He has more than 3 years of experience in the Geotechnical Engineering industry with specialization in Finite Element Modelling and Analysis. Rohith brings a balanced perspective combining software expertise with industry experience in engineered ground solutions (including previous work with Maccaferri), enabling practical and technically robust modelling strategies. As part of the technical team at Midas, Rohith has been involved in the continuous advancement of Midas GTS NX by translating complex engineering problems into efficient computational workflows and supporting consultants, contractors and researchers in delivering reliable and optimized design.  
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Premium Q. How can I question or contact to MIDAS experts? Expand or Collapse
You can reach our technical experts through multiple channels: email at support@midasuser.com, our online support portal, or by scheduling a consultation through our website.